When to go · Friday Harbor
Friday Harbor in September
Great month. Inside Friday Harbor's best window: Jun–Sep (dry, long days, whale season); May and Sep for fewer crowds.
Key facts
- Verdict
- Great
- Temperature
- 20°C (68°F)68°F (20°C) / 10°C (50°F)50°F (10°C)
- average high / low
- Rain days
- 6
- Crowds
- Medium
- United States overall
- Prices
- Medium
- United States overall
Verdict
Inside Friday Harbor's best window: Jun–Sep (dry, long days, whale season); May and Sep for fewer crowds.
Is another month better than September?
No other month rates higher than September for Friday Harbor in this guide.
Weather in September
- Friday HarborHighs around 20 °C (68 °F), lows around 10 °C (50 °F), rain on about 6 daysHighs around 68 °F (20 °C), lows around 50 °F (10 °C), rain on about 6 days
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
Labor Day big impact
1st Monday of September · United States
End of summer; last big road-trip weekend.
Crowds and prices
- Crowds · United States overall
- Medium
- Prices · United States overall
- Medium
United States overall: After Labor Day the crowds drop and parks stay open; Florida and the Gulf are at hurricane peak.
Compare two months
Weather, crowds and prices for any two months in Friday Harbor, side by side.
Verdict
Sep: Great
May: Great
Daytime high
Sep: 20 °C (68 °F)68 °F (20 °C)
May: 17 °C (63 °F)63 °F (17 °C)
Night low
Sep: 10 °C (50 °F)50 °F (10 °C)
May: 7 °C (45 °F)45 °F (7 °C)
Rain days
Sep: 6 (better)
May: 9
Crowds
Sep: Medium
May: Medium
Prices
Sep: Medium
May: Medium
Festivals listed
Sep: 1
May: 1
September: Inside Friday Harbor's best window: Jun–Sep (dry, long days, whale season); May and Sep for fewer crowds.
May: Inside Friday Harbor's best window: Jun–Sep (dry, long days, whale season); May and Sep for fewer crowds.
Friday Harbor: figures are long-term averages from this guide, not a forecast.
What to pack
- A warm layer for the evenings